package vn.edu.saigontech.ncms.service;

import java.util.Collection;
import java.util.Date;

import vn.edu.saigontech.ncms.model.system.USD;
import vn.edu.saigontech.ncms.service.impl.USDServiceImpl;

public interface USDService extends GenericService<USD, Long> {
	
	static final USDService INSTANCE = new USDServiceImpl();
	
	USD findByDate(Date date);
	
	USD findCurrent();
	
	/**/
	/**
	 * 
	 * @param month
	 * @return
	 */
	Collection<USD> findByMonth(Integer month, Integer year);
}